Thanks to all for the responses. A couple notes It is nice to get the overall
feedback
that I'm not nuts to be terribly annoyed by this, and don't need to fix it
tomorrow.
Berwin 's note brings to mind the old adage that "The reason it is so hard to
make things
foolproof is that fools are so ingeneous." 1. Using survival::strata(inst) in
the rhs of
the survdiff call does not generate an error message. Because the stata
function is not
recognized as special one instead gets the wrong answer. (Or I should say, "the
correct
answer to a different question".) Ditto for most of the rest of the package
functions. The
very worst kind of bug. 2. Using specials =c("strata", "survival::strata")
could work. I
always process the result with a small "untangle.specials" function, a leftover
from when
R and Splus returned slightly different formula structures. I could put
post-processing
there. I'll think on this some more. But Ivan's follow-up was not encouraging.
3. Bill's
suggestion to pre-fix the formula. Not a bad idea. If I followed the Call <-
match.call()
that lives at the top of my code by an immediate fix of the formula portion of
the list,
then all else would flow. And as perhaps a bit of a snark, the user would see
the
corrected form in their printout. The nuts who want to call a survival routine
without
attaching the name space will be out of luck though. Terry
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